SeriousWorm
28th June 2004, 17:03
Hi,
I've finally set up my HAUPPAUGE WinTV-GO 2 TV tuner for use with VirtualDub. The only problem I firstly encountered was that I couldn't use the full PAL 704x576, resolution; the max was 704x288, otherwise it would give me "Error 418: Unsupported video format". I don't have much of a problem with this since it seems that because of the lower res I don't get any interlacing artifacts, and I can just properly resize the picture later, or leave as it is since BSPlayer can correct for the aspect ratio on the fly.
However, I get some strange moving chroma noise on one particular channel. Most of other channels work fine or have very little "standard" noise; this one, however, gives me headaches. I've tried several temporal and spatial denoise filters, but none of the seem to work. Since I'm a newbie in TV capturing, I'll put the screenshots and a 3-second clip here so you can judge the problem.
And BTW, that particular channel is important to me since I want to record a daily series when I'm in school to watch it when I return, since my VCR has a broken remote.
Original frame:
http://img3.imageshack.us/img3/7382/TVcapture-1.jpg
Same frame, but greyscale (filtered with Greyscale() in Avisynth)
http://img3.imageshack.us/img3/7995/TVcapture-2.jpg
Short clip (1.8MB, xvid 1.0, Quant 4)
http://www.inet.hr/~rgrzicic/files/TVcapture-clip.avi
I've finally set up my HAUPPAUGE WinTV-GO 2 TV tuner for use with VirtualDub. The only problem I firstly encountered was that I couldn't use the full PAL 704x576, resolution; the max was 704x288, otherwise it would give me "Error 418: Unsupported video format". I don't have much of a problem with this since it seems that because of the lower res I don't get any interlacing artifacts, and I can just properly resize the picture later, or leave as it is since BSPlayer can correct for the aspect ratio on the fly.
However, I get some strange moving chroma noise on one particular channel. Most of other channels work fine or have very little "standard" noise; this one, however, gives me headaches. I've tried several temporal and spatial denoise filters, but none of the seem to work. Since I'm a newbie in TV capturing, I'll put the screenshots and a 3-second clip here so you can judge the problem.
And BTW, that particular channel is important to me since I want to record a daily series when I'm in school to watch it when I return, since my VCR has a broken remote.
Original frame:
http://img3.imageshack.us/img3/7382/TVcapture-1.jpg
Same frame, but greyscale (filtered with Greyscale() in Avisynth)
http://img3.imageshack.us/img3/7995/TVcapture-2.jpg
Short clip (1.8MB, xvid 1.0, Quant 4)
http://www.inet.hr/~rgrzicic/files/TVcapture-clip.avi